Golf-ball.



UNITED STATES Patented April 4, 1905.

CHARLES DE BUREN, OF GENEVA, SIVITZERLAND.

GOLF-BALL.

SPECIFICATION forming part of Letters Patent No. 786,343, dated April 4, 1905. Application filed May 26, 1904. Serial No. 209,981.

To all whom it may concern:

Be it known that I, CHARLES DE BUREN, gentleman, of Geneva,Switzerland, have invented certain new and useful Improvements in and Relating to Golf-Balls, of which the following is a specification.

The invention relates to an improved construction and manufacture of golf-balls; and the invention consists of making the said golfball of celluloid or of a mixture of celluloid with a suitable quantity of other materials so as to provide golf-balls of the prescribed diameter and weight and having the indispensable elasticity.

As is well known, golf-balls are required to have a certain outer diameter and at the same time a certain weight and a certain degree of elasticity. In order to meet these requirements, numerous combinations of solid as well as of hollow spheres with suitable coat-v ings or coverings have been manufactured heretofore. Pure celluloid has been employed to cover a core of other material or to form the coreitself provided with a covering of other material; but the manufacture of such golf-balls is very complicated and irregular, the result being that the three.essential properties predetermined diameter, weight, and elasticityare different in one ball from 3 that in another ball of the same lot, which is very annoying to the player.

According to the presentinvention the golfball is a hollow sphere of homogeneous material which possesses the necessary proper- ;5 tiesthat is to say, combines with the prescribed diameter of from forty to forty-five millimeters the proper weight of from forty to forty-five grams and the proper degree .of elasticity.

My new golf-ball consists of a homogeneous hollow sphere having a composition of the following ingredients made up in the following proportions: seventy per cent. pure celluloid and thirty per cent. of a salt of lead, as the sulfate (PbSOi) or the carbonate, (PbOO3.) Forty to forty-five grams of this mixture is poured in the usual manner into a suitable mold to form a hollow sphere, the outer surfaceof which may be corrugated or striated, as desired.

What I claim is l. A golf-ballin the form of a hollowsphere made up of about seventy per centum of pure celluloid and about thirty per centum of a salt of lead.

2. Agolf-ballin the form of a hollow sphere and made up of a homogeneous mixture of pure celluloid, seventy parts, and of lead carbonate, thirty parts.

3. As a new composition for the makingof golf-balls, a mixture of about seventy per centum of pure celluloid with a salt of lead having a specific gravity greater than 1.3.

4. As a new composition for the making of golf-balls, a mixture of about seventy per centum of pure celluloid with about thirty per centum of lead carbonate (PbCO3.)

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES DE BUREN.

WVitnesses:

G. lMER-SOHNEIDER, L. H. MUNIER. 

